adjective satellite (s)

• having lost or been caused to lose interest because of overexposure(adj.all)

  Example:
  The mind of the audience is becoming dulled.
  

  Synonym:
  benumbed
  

  source: wordnet30
• made dull or blunt(adj.all)

  Synonym:
  blunted
  

  source: wordnet30
• deprived of color(adj.all)

  Example:
  Colors dulled by too much sun.
  

  Synonym:
  greyed
  

  source: wordnet30